Typewriting machine



April 7, 1931.

G. M. SCHERER 1,799,182

TYPEWRI TING MACHINE Filed Oct. ll, 192'? 2 Sheets-Sheet 2 fr' 5wPatented Apr. 7, 1931 GILBERT M. SCHERER, OF NEW YORK, N. Y.,

PANY, INC., OF NEW YORK, N. Y.,

ASSIGNOR TO ROYAL TYPEWRITER COM- 4A CORPORATION NEW YORK TYPEWRITIN GMACHINE Application filed October 11, 1927. Serial No. 225,480.

This invention relates to means-by which the usual margin stop may bereleased from the stop bar and held by a part of the frame of themachine while the carriage and stop bar are moved independently of thesaid stop. This enables the stop to be adjusted to any desired positionsince if the stop is to be set at any particular letter space positionof the carriage, it is only necessary to operate the releasingmechanism, move the carriage to the desired letter space position andrelease said mechanism, allowing the'stop to again engage with the stopbar.

Either of the ordinary margin stops may be adjusted readily and quicklyto any desired letter space position. The key which releases the marginstops from the stop bar `is also adapted to roperate the usual leverwhich releases the carriage from the escapement mechanism and permits itto be moved in either direction to the desired point'.

Further features of the invention will be apparent from the followingdetailed description and will be set forth in the appended claims.

In the drawings:

Figure 1 is a top plan View of a portion of the carriage showing themargin stops and means for releasing the same.

Figure Qis a. rear view of a margin stop and the associated detentmechanism on the frame of the machine with the parts in normal position.

Figure 3 is a similar View with the margin stops shown in verticalsection and the parts in operative position.

Figure 4 is an end view of the typewriter carriage showing the generalrelation of the invention thereto.

Figure 5 is a top plan View of a margin stop and supporting stop barwith the usual central stop in horizontal section and the two stops inoperative engagement.

Figure 6 is a similar view showing the different position of the parts.

Figure 7 is a rear view ofthe stop bar with part thereof in verticalsection and the release bar in normal position.

Figure 8 is a similar view with the release bar in its operativeposition.

release lever This invention is applicable to a standard form oftypewriting machines but for convenience has been illustrated inconnection with the standard Royal typewriter.

There is illustrated a platen A mounted in Side frames B of thecarriage, which frames are connected by a tie rod C. An escapement wheelD is mounted in thc main frame E and has rigid therewith a pinion Fwhich meshes with a rack G carried by a bail l'l h aving arms Kpivotally supported on the side frames of the carriage. A bent lug L onthe carriage release lever M underlies one of the arms K so that byoperation of thil the bail is lifted and the rack G disengaged from thepinion F to permit movement of the carriage in either direction. Thereis also shown in Figure l the usual tabulating stop bar N.

The margin stop bar l is supported at its ends in the side frames B ofthe carriage and has a central longitudinal slot in which slides a releabar 2. rThe stop bar carries pins 3 which pass through inclined slots -Lin the release bar so that an endwise movement of the release bar fromthe position shown in Figure 7 will cause the bar to ride upwardly untilit projects beyond the edge of the stop bar as shownin Figure 8. Thisendwise movement is brought about by the following mechanism.

The finger lever 5 is pivoted to one side of the carriage by the samescrew 6 which holds one end of the tie rod C in position. This lever hasa bent over arm 7 connected by'a link 8 to one arm 9 of a bell cranklever pivotally supported on the carriage and having its other arm l0engaging a cut-out ll in one end of the release bar 2. A spring 12 whichhas one end fast to a fixed support on the carriage and the other endpassing through a hole 13 in the release bar returns the lever to normalposition when pressure,

is removed from the finger lever 5. The lever 5 also has a pin 14projecting outwardly and overlying the carriage release lever M so thatwhen the lever 5 is operated, not only will the release bar 2 be movedto its operative position, but the carriage will be released from itsescapement mechanism so that i side members connected b it may movefreely in either direction. It will be also observed that the carria erelease lever M may be operated indepen ently of the margin stop releaselever 5.

The margin stops illustrated are in many respects similar to thosepreviously known and used in the Royal machine and each stop comprises abody portion 15 of eneral trough like form having ears 16 an 17 at theirends which project below the stop bar and are connected by pins 18 and19 respectively. The thin metal member 20 has its ends hooked about thepins 18 and 19 and lies in contact with the lower edge of the stop bar.The stop is held in adjusted position on the stop bar b means of a latchmember 21 provided wit a nger piece 22 and having ears 23 intermediateits ends which are pivoted to the stop on an axis 24. The latch memberalso has a downwardly extending tooth ortion or detent 25 which engagesbetween the teeth 26 of the stop bar 1 and holds the stop in itsadjusted position. A spring 27 coiled about the pivot 24 fands to returnthe latch 21 to the Figure 2 position. Between the body of the stop andthe latch member thus described and pivoted on the pivot 24 by means ofears at each side thereof is a bail member 28 normally forced downwardby a. ring 29. One Aend of this bail member slias a downwardly extendinarm 30 provided with a in 31 at its en which fits in an elongate slot 32near one end of a detent member 33 which comprises va cross bar 34terminating in a sharp e ge. This detent member is pivoted on the pin19.

The engaging portion of the stop is an ad- 'ustable screw 35 carried bythe stop memr above described and locked in adjusted position by a setscrew if so desired. The sto also includes mechanism for automatical ysetting the stop surfaces a distance away from each other equal to one'letter s ace, such mechanisms being in themselves o d as shown forexample in patent to L. C. Myers No. 947,450 granted Jan. 25, 1910. Thismechanism comprises in the present instance an adjustable member 36 heldin position upon the stop member by a screw 37 passing through anelongated opening in the member 36. Upon this member 36 is pivoted by ascrew 38, an interponent 39 having an end 40 which may be moved into aposition between the stop 35 and the center stop 42 on the frame of themachine. The interponent has an upturned end 41 having a cam portion inposition to be engaged by the g'latch 21 when it is pressed downward torclease the stop from the stop bar. Whenever A,the stop is releasedeither manually or by the release mechanism, this interponent will Vbeswung to the Figure 6 position.

The detent member 33 is adapted to cooperate with detent mechanism onthe frame of the machine which comprises a bracket 43 havin offsetflangia 44 which is fastened to a fixe part of t e machine by screws 45which pass through openings 46 in said bracket. Two do s 47 are mountedon pivots 48 and have t eir facing ends 49 separated by a slight space.A downward extension of each dog 47 carries a in 50 which rojectsthrough a slot 51 in the racket memer. A spring 52 has a central portioncoiled about a stud 53 carriedby the bracket and the ends 54 thereofengage the ins 50 to hold the dogs 47 normally in the igure 2 positlOll.

When the parts are in normal position such as shown in Figure 2, the marin stop is locked to the said bar 1 and the etent 33 is in a plane abovethe ends 49 of the dogs 47.

.When it is desired to set a margin stop, the

endwise position. This will cause the release bar to rise to theposition shown in Figures 3 or 8 and in this movement it will engagewith the detent-25 and lift the same out of engagement with the teeth 26of the stop bar. At the same time the release bar 2 will enga e the bail28 and rock the detent member 33 ownward, bringing the bar 34 into theFigure 3 position so that as the carriage is moved in proper direction,the detent will engage one of the dogs 47 and cam the same downwardagainst the tension of the sprin 52 until the end of the detent comesinto t e s ace between the ends 49 of the dogs. In t is position it willbe held so lon as pressure is maintained on the lever 5 auf at this timethe carriage can be moved independently of the stop to any desiredletter space osition. The same releasing movement o the latch 21 abovementioned will cam the interponent 39 to the Fi ure 6 position toautomatically set the marginal stop at one letter space distance fromthe center stop 42. As soon as ressure on the finger lever 5 isreleased, the etent 25 will move downward into en agement with the stopbar 26 for holding t e stop in-adj usted position, and the spring 29will return the bail 28 and detent member 33 to the figure 2 position,disengaging the same from the stops 47. Thus a marginal stop will belocked t0 the stop bar in position to stop the carria e in the selectedletter space position.

n other words, let it be assumed that the machine frame is provided withthe usual scale and the carriage with a cooperating pointer, and that itis desired to set the left hand margin stop at the point 20 in saidscale. The stops are in locked en agement with the rack bar and themovable etents on the stops are disposed above the detent mechanism sothat neither detent will engagesaid mechanism when the carriage ismoved. The operator depresses the margin stop release at the same timewill move the release bar to 1ever`-.5l which-Will` release thelatches'of'ebo'th v margin. stopsfrom theirack. and*simultanem-ouslycooperate'withthe carriager'eleaselever 'M mechanism.:Simultaneously with the release .f 1.of;thef,latches,-thesdetents willlbe wmoved to release the carriagefrom itsescapement downwardlyV into aposition whereby" either A f one of themfwill engage thefdetentmechanism vil() ".uponemovement ofthe-carriage.

.The operator-without; releasing .thelever and the .ke M, moves thecarriage tothe right .until the etent of the left hand stop engages thedetenty mechanism. The l enga ement between the detento the left hanrstop and .said detent f mechanism prevents further movement'of thestopvwith the carriage, but .permits the carriagev to .be further.`moved 4.by the operator. in' the same 'directions .-untiliY thegpointer on the carriage lregisters with the `number -on thescale.Theleveris then "released by the opeatorand consequently-all ofthepartswill bereturnedto theirr initial favo .posite `tionaof the machine,the carriage -wil ybe although the carriage Will vbe moved in the op-'rection. l It is obvious that the inventonmay be aplplied to differenttypes of machines-and that various-details thereof may modifiedso farwas the actual structureis concerned without in anyway `departing.fromthe s` iritof the invention, which is to be regarde as limited onlybythe scope ofthe appended claims.

\ I claim asinyl invention :A

1. In a typewritingmachine havin a margin stop bar, a marginstopadJustab ethereon, and carriage release mechanism; the com' .bination.of meansffor releasing the: margin stop from Vthe bar which`comprises-a release bar mounted on and movable longitudinally oftheYstop bar,imanual means for operating ytherelease bar, and means wherebysaid manual-means also operates lthe* carriage release '.mechanism.

.2. VIn-.a typewriting machine havin a-margin stop bar, .a margin'stopadj ustab le .thereon,iand.a `latch carried by the stop for holding barywhich comprises a release barmounted on and .movable both transverselyand longitudinally of the stop :bar to releasasaid latch,

' and manual means `for'operating said.y release bar.

l3. In a typewriting machine having a marvgin stop bar, a margink stopadjustable thereybar `mounte :the endwise `movement of bar having aslot-extending len of, amargin stop on saidbar, a atch for holdzingzsaid .gage t e detent mechanism.y

stop duringmovement `of andmovable both transverselyand lon itudi-.nally of vthe stopbar to release said lato ,adetent carried by saidstop-and moved to operal' tivezposition when the stop is released, anddetent .mechanism on the: frame of the` machine .fior-engaging. saiddetent.

4. SIna typewriting machine, a margin stop bar having aa slot extendinglen hwise thereof, avmargm'stop onzsaidbar, a atchfor holding said.v stoin adjusted` position, a release barzmounte ing said elease bar endwiseto `move said-latch .,tof'releasing position vand permit .adjustment :of-saidstop.

v5. In atypewritingmachine, a margin stop bar'having a slot extendinglengthwise thereof, a-margin stopon said bar, a latch for holdingvsaidstoi in adjusted position, a release in said slot, means for movingsaid IreleaseA harendwise, andzmeans `whereby itinanotherdirection.to'release said latch.

6. Ina typewritingmachine, a margin stop sto in ad; usted position, arelease barzmounte insai s1ot,.a detent carried by said stop, detentymechanism on the frame of the=machine,:and meansfor moving said releaseVbar tof'release said latch and .simultaneousl `move the..detent intovposition toren- 17. In' a typewriting machine, `an endwise movablemargin stopbar, amargm stop thereon, means forxnorm'a'lly holding vthestop inlinedV relation Ato the bar, a detent on said stop, detentlmechanism on the frame of the machine including spring presseddo s, andmeans `for releasing said stop. fromt e barand for simultaneously movingthe detent.

4into position for engagement between said dogs upon the movement of thebar in either direction'.

in-said slot, and means for movsaid baralso `moves hwise there-- a mainframe,

8. "In-'atypewriting machine, the combination with -a main frame, V.of acarriagemovable. onv said main frame, an escapement mechanismffor thecarriage, means :for releasing the carriage' from the'escapementmechanism 'includingy a 'carriage release. key, af .margin v stop barmovable with the carriage, a margin stop adjustably mounted on the barfor movements longitudinally:thereofyaflatchcarried .it in adjustedposition; lthe combinationfo'f meansfor releasing the-margin stopfromthe `by .the'sfopf for locking thesame `inang7 position of'adjjustmentalong the bar where y said stop will bel normally moved with thel ,car-

anda. detent mechanism engageable lbyfsairi the carriage in one izofdirection to retain said stop against further movement with thecarriage during said carnage movement 9. In a typewriting machine, thecombination with a main frame, of a carriage movable on said main frame,an escapement mechanism for the carriage, means for releasing thecarriage from the escapement mechanism including a carriage release key,a margin stop bar movable with the carriage, a margin stop adjustablymounted on the bar for movements longitudinally thereof, a latch carriedby the stop for locking the same in any position of adjustment along thebar whereby said stop will be normally moved with the carriage, a detentmechanism, a detent movably mounted on the stop and normally disposedout of the path of engagement with said detent mechanism, and means forreleasing the latch from the bar including an actuating levercooperating with the carriage release key to simultaneously operate thecarriage release mechanism and for moving the detent into the path o'fthe detent mechanism whereby the stop will be retained against furthermovement With the carriage during the carriage movement in onedirection.

10. In a typewriting machine, the combination with a main frame, of acarriage movable on said frame, an escapement mechanism for thecarriage, means for releasing the carriage from the escapement mechanismincluding a carriage release key, a margin stop bar movable with thecarriage, margin stops independently adjustable on the bar, a latchcarried by cach stop for locking the sto in any position of adjustmentalong the ar, means for simultaneously releasing the latches of bothstops from the bar including an actuating lever cooperating with thecarriage release key to simultaneously operate the carriage releasemechanism, and a detent mechanism located intermediate said stops andengageable by one stop only during movement of the carriage in onedirection to retain the said stop against further movement with thecarriage during said carriage movement.

11. In a typewriting machine, the combi-' nation of a carriage and anescapement mechanism therefor, and manually operable means for releasingthe carriage from the escapement mechanism, said carriage including amargin stop bar and a margin stop adjustable thereon; and manuallyoperable means for releasing the margin stop from the stop bar andarranged in cooperative relation with the carriage release means wherebyboth release means will be operated simultaneously upon operation of thestop release means, the carriage release means being operableindependently of the margin stop release means.

12. In a typewriting machine, the combination of a carriage and anescapement mechanism therefor, and means including a manually operablelever for releasingthe carriagel from the escapement mechanism, saidcarriage including a margin'stop bar and a margin stop ad]ustablethereon; and means including a manually operable lever for releasing themargin stop from the stop bar and arranged in cooperative relation withthe carriage release lever whereby both release means will be operatedsimultaneously upon operation of the stop release lever, the carriagerelease lever -being operable independently of the margin sto releaselever.

13. In a typewriting mac ine, the combination of a frame, a carriage andan escapement mechanism therefor, a center stop, and

manually operable means for releasing the carriage from the escapementmechanism, said carriage including a margin stop bar and a margin stopadjustable thereon; manually operable means for releasing the marginstop from the stop bar and arranged in cooperative relation with thecarriage release means whereby both release means will be operatedsimultaneously upon operation of the stop release means, the carriagerelease means being operable independently of the margin stop releasemeans, detent mechanism other than the center stop and mounted on theframe of the machine, and means carried by the margin stop for engagingsaid detent mechanism when said margin stop is released from the bar.

14. In a typewriting machine, the combination of a frame, a carriage andan escapement mechanism therefor, a center stop, and means including amanually operable lever for releasing the carriage from the escapementmechanism, said carriage including a margin stop bar and a margin stopadjustable thereon; means including a manually operable lever forreleasing the margin stop from the stop bar and arranged in cooperativerelation with the carriage release lever whereby both release means willbe operated simultaneously upon operation of the stop release lever, thecarriage release lever being operable independently of the margin stoprelease lever, detent mechanism other than the center stop and movableon the frame of the machine, a detent on said margin stop normally outof the path of the detent mechanism, and means whereby the margin stoprelease means moves said detent into operative position for engagementwith the detent mechanism to stop further movement of said margin stop.

In testimony whereof, I have hereunto subscribed my name.

GILBERT M. SCHERER.

